execution

root:~# salt-call --version
salt-call 2016.3.4 (Boron)

root:~# salt-call state.sls packages.baser
local:
----------
          ID: required-packages
    Function: pkg.installed
      Result: True
     Comment: All specified packages are already installed
     Started: 12:52:30.820182
    Duration: 321.389 ms
     Changes:   
----------
          ID: boto
    Function: pip.installed
        Name: boto >= 2.6
      Result: False
     Comment: The following requisites were not found:
                                 require:
                                     pkg: python-pip
     Changes:   

Summary for local
------------
Succeeded: 1
Failed:    1
------------
Total states run:     2
Total run time: 321.389 ms

state

required-packages:
  pkg.installed:
    - pkgs:
      - curl
      - python-pip

boto:
  pip.installed:
    - order: last
    - name: boto >= 2.6
    - require:
      - pkg: python-pip